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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 24 · 40 questions
TalentJR

Remember (Digit, digit, zeros): black 0 · brown 1 · red 2 · orange 3 · yellow 4 · green 5 · blue 6 · violet 7 · grey 8 · white 9. Band 1 and band 2 = two digits; band 3 = number of zeros to add. Examples: brown-black-red = 1000 Ω; yellow-violet-brown = 470 Ω; red-red-red = 2200 Ω = 2.2 kΩ.

NameDateTime takenScore ___ / 40
  1. 1.🌈 A gold fourth band on a resistor means the value may be off by … (a) 25 % (b) 50 % (c) 5 % (d) 0 %
  2. 2.🌈 A resistor has the colour bands blue, brown, red. What is its value in kilo-ohms (kΩ)? =
  3. 3.🌈 In the resistor colour code, which number does black stand for?
  4. 4.🌈 A resistor has the colour bands brown, black, orange. What is its value (in ohms)?
  5. 5.🌈 A resistor has the colour bands yellow, orange, brown. What is its value (in ohms)?
  6. 6.🌈 In the resistor colour code, which number does grey stand for?
  7. 7.🌈 In the resistor colour code, which number does brown stand for?
  8. 8.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 840 Ω resistor? (a) yellow-grey-brown (b) grey-yellow-black (c) grey-yellow-brown (d) grey-yellow-red
  9. 9.🌈 In the resistor colour code, which number does orange stand for?
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 510 Ω resistor? (a) green-brown-brown (b) brown-green-brown (c) green-brown-black (d) green-brown-red
  11. 11.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 20 Ω resistor? (a) orange-black-black (b) red-black-black (c) orange-red-black (d) red-black-brown
  12. 12.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 2100 Ω resistor? (a) brown-red-red (b) red-brown-orange (c) red-brown-red (d) red-brown-brown
  13. 13.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 32 Ω resistor? (a) red-orange-black (b) orange-red-black (c) yellow-red-black (d) orange-red-brown
  14. 14.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9200 Ω resistor? (a) red-white-red (b) white-red-brown (c) white-red-orange (d) white-red-red
  15. 15.🌈 A resistor has the colour bands orange, yellow, black. What is its value (in ohms)?
  16. 16.🌈 A resistor has the colour bands yellow, brown, red. What is its value in kilo-ohms (kΩ)? =
  17. 17.🌈 A resistor has the colour bands red, white, yellow. What is its value in kilo-ohms (kΩ)? =
  18. 18.🌈 A resistor has the colour bands red, white, red. What is its value in kilo-ohms (kΩ)? =
  19. 19.🌈 A resistor has the colour bands white, white, red. What is its value (in ohms)?
  20. 20.🌈 A resistor has the colour bands red, black, orange. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands orange, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 1100 Ω resistor? (a) brown-brown-orange (b) brown-brown-red (c) brown-brown-brown (d) brown-red-red
  23. 23.🌈 A resistor has the colour bands red, brown, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands green, black, orange. What is its value (in ohms)?
  25. 25.🌈 A resistor has the colour bands grey, brown, black. What is its value (in ohms)?
  26. 26.🌈 In the resistor colour code, which number does yellow stand for?
  27. 27.🌈 A resistor has the colour bands brown, violet, yellow. What is its value in kilo-ohms (kΩ)? =
  28. 28.🌈 Which band is read first on a resistor? (a) the gold band (b) any band (c) the widest gap (d) the one nearest an end
  29. 29.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 580 Ω resistor? (a) green-grey-red (b) grey-green-brown (c) green-grey-black (d) green-grey-brown
  30. 30.🌈 A resistor has the colour bands violet, yellow, brown. What is its value (in ohms)?
  31. 31.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 52 Ω resistor? (a) green-red-black (b) blue-red-black (c) red-green-black (d) green-red-brown
  32. 32.🌈 In the resistor colour code, which number does white stand for?
  33. 33.🌈 A resistor has the colour bands violet, white, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands red, violet, orange. What is its value (in ohms)?
  35. 35.🌈 A resistor has the colour bands red, blue, brown. What is its value (in ohms)?
  36. 36.🌈 A resistor has the colour bands green, blue, brown. What is its value (in ohms)?
  37. 37.🌈 A resistor has the colour bands violet, white, orange. What is its value in kilo-ohms (kΩ)? =
  38. 38.🌈 A resistor has the colour bands yellow, grey, orange. What is its value in kilo-ohms (kΩ)? =
  39. 39.🌈 A resistor has the colour bands orange, black, red. What is its value in kilo-ohms (kΩ)? =
  40. 40.🌈 A resistor has the colour bands green, brown, brown. What is its value (in ohms)?

Answer key

  1. 5 %
  2. 6.1
  3. 0
  4. 10000
  5. 430
  6. 8
  7. 1
  8. grey-yellow-brown
  9. 3
  10. green-brown-brown
  11. red-black-black
  12. red-brown-red
  13. orange-red-black
  14. white-red-red
  15. 34
  16. 4.1
  17. 290
  18. 2.9
  19. 9900
  20. 20000
  21. 330
  22. brown-brown-red
  23. 210
  24. 50000
  25. 81
  26. 4
  27. 170
  28. the one nearest an end
  29. green-grey-brown
  30. 740
  31. green-red-black
  32. 9
  33. 7.9
  34. 27000
  35. 260
  36. 560
  37. 79
  38. 48
  39. 3
  40. 510

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